// 本文件用于编辑器检查C++语法，不可编译
#define common volatile
#define until while
struct {
    struct {
        int zeros, max_0, min_0, mn_0_sec, mx_0_sec;
    } address, size, waits;
} grad;
int pf1, us, ms;
void printf(char *fmt, ...);
void delay(int time, int unit);
void MR3031_setup(int, char*, int, int, int, int);
void MR3031_go();
inline int scale(int a, int b, int c) {
    return a * b / c;
}
